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Alseud K, Ostlund T, Durymanov M, Reineke J, Halaweish F. Synthesis and biological activity of 11-Oxygenated and heterocyclic estrone analogs in pancreatic cancer monolayers and 3D spheroids. Bioorg Med Chem 2024; 103:117678. [PMID: 38489997 DOI: 10.1016/j.bmc.2024.117678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/17/2024]
Abstract
Pancreatic Ductal Adenocarcinoma (PDAC), representing over 90 % of pancreatic cancer diagnoses, is an aggressive disease with survivability among the worst of all cancers due to its difficulty in detection and its high metastatic properties. Current therapies for PDAC show limited success at extending life expectancies, primarily due to cancer resistance and lack of patient-specific targeted therapies. This work highlights the design and evaluation of estrone-derived analogs with both heterocyclic side-chain functionality and 11-oxygenated functionality for use in pancreatic cancer. First-round heterocyclic analogs show preliminary promise in AsPC-1 and Panc-1 cell lines, with IC50 values as low as 10.16 ± 0.83 µM. Their success, coupled with design choices from other studies, led to the synthesis of novel 11-hydroxyl and 11-keto estrone analogs that show potent in-vitro toxicity against various pancreatic cancer models. The three most cytotoxic analogs, KA1, KA2, and KA9 demonstrated low micromolar activities in both MTT and CellTiter assays in three pancreatic cancer cell lines: AsPC-1, Panc-1, and BxPC-3, as well as in a co-culture of Panc-1 and pancreatic stellate cells. IC50 values for KA9 (4.17 ± 0.90, 5.28 ± 1.87, and 5.70 ± 0.65 µM respectively) shows consistency in all cell lines tested. KA9 is also able to cause an increase in caspases 3 and 7 activity, key markers for apoptosis, at non-cytotoxic concentrations. Additional work was performed by generating 3D pancreatic cancer spheroids to better modulate the pancreatic tumor microenvironment, and KA9 continued to show the best IC50 values (21.0 and 24.3 µM) in both cell types tested. KA9 was also able to prevent the growth of spheroids whereas the standard chemotherapy, Gemcitabine, could not, suggesting that it may be a potent analog for future development of treatments. Molecular dynamic simulations were also performed to confirm biological findings and uncovered that KA9's preferential binding location is in the active site pocket of key proteins involved in cytotoxicity.
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Affiliation(s)
- Khaled Alseud
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD 57006, USA; Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha 61421, Saudi Arabia
| | - Trevor Ostlund
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD 57006, USA
| | - Mikhail Durymanov
- Department of Pharmaceutical Sciences, South Dakota State University, Brookings, SD 57006, USA
| | - Joshua Reineke
- Department of Pharmaceutical Sciences, South Dakota State University, Brookings, SD 57006, USA
| | - Fathi Halaweish
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD 57006, USA.
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2
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Mahnashi M, Alshahrani MM, Al Ali A, Asiri A, Abou-Salim MA. Novel Glu-based pyrazolo[3,4-d]pyrimidine analogues: design, synthesis and biological evaluation as DHFR and TS dual inhibitors. J Enzyme Inhib Med Chem 2023; 38:2203879. [PMID: 37080777 PMCID: PMC10120551 DOI: 10.1080/14756366.2023.2203879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023] Open
Abstract
A novel series of multifunctional pyrazolo[3,4-d]pyrimidine-based glutamate analogs (6a-l and 7a,b) have been designed and synthesized as antifolate anticancer agents. Among the tested compounds, 6i exhibited the most potent anti-proliferative activity towards NSCLC, CNS, Ovarian, Prostate, Colon, Melanoma, Breast, and Renal cancers with good to weak cytostatic activity and non-lethal actions. 6i demonstrated higher selectivity for cancer than normal cells. 6i could significantly increase the accumulation of S-phase cells during the cell cycle distribution of cancer cells with high potency in the induction of apoptosis. The results unveiled that 6i probably acts through dual inhibition of DHFR and TS enzymes (IC50 = 2.41 and 8.88 µM, correspondingly). Docking studies of 6i displayed that N1-p-bromophenyl and C3-Methyl groups participate in substantial hydrophobic interactions. The drug-likeness features inferred that 6i met the acceptance criteria of Pfizer. Taking together, 6i could be a promising prototype for further optimization as an effective anticancer drug.
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Affiliation(s)
- Mater Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Mohammed Merae Alshahrani
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, Najran, Saudi Arabia
| | - Amer Al Ali
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, University of Bisha, Bisha, Saudi Arabia
| | - Abdulaziz Asiri
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, University of Bisha, Bisha, Saudi Arabia
| | - Mahrous A Abou-Salim
- Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
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3
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Acheampong F, Ostlund T, Mahnashi M, Halaweish F. Antiproliferation and apoptosis studies of estrone pharmacophores in triple-negative breast cancer. Chem Biol Drug Des 2023; 102:1050-1066. [PMID: 37500540 DOI: 10.1111/cbdd.14303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/27/2023] [Accepted: 07/17/2023] [Indexed: 07/29/2023]
Abstract
Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer that shows high metastatic capability and poor prognosis. The aggressive behavior of TNBC may involve amplified EGFR expression. Currently, no targeted therapy has been approved for treating TNBC, which urgently needs novel treatment options. In this study, we report that estrone analogs with novel pharmacophores exhibited high potency toward TNBC cells through multiple mechanisms, inhibition of cell proliferation via EGFR receptor, and induction of mitochondrial apoptosis. Molecular docking studies revealed that hit analogs MMA307 and MMA321 were potent against the EGFR receptor (pdb code: 1M17) in silico and were over 10-fold more potent than sorafenib (positive control) when dosed against MDA-MB-468 cells in vitro. MMA307 and MMA321 induced mitochondrial apoptosis as characterized by condensed nuclei with fragmented chromatin, phosphatidylserine flip and modulated expressions of Apaf1, cytochrome c, and caspases 3 and 9. MMA307 and MMA321 inhibited TNBC proliferation through suppression of EGFR and activated EGFR (Y1068) expressions. Similarly, EGFR signaling pathways, RAF/ERK and AKT/mTOR, were inhibited as pARaf, pERK1/2 (characterizes RAF/ERK pathway) and pAKT, pmTOR, p70S6Kα (characterizes AKT/mTOR pathway) were all suppressed. Moreover, MMA307 and MMA321 inhibited TNBC cell growth through downregulation of cyclin D1 expression and arresting TNBC cells in the G1 phase of cell cycle. This study reports for the first time that estrone congeners with novel pharmacophores may be an effective therapy for TNBC. Findings from this research provide a solid foundation for further preclinical and clinical studies in developing estrone derivatives as novel TNBC therapeutics.
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Affiliation(s)
- Felix Acheampong
- Department of Preclinical Pharmacology, Verve Therapeutics Inc., Boston, Massachusetts, USA
| | - Trevor Ostlund
- Department of Chemistry and Biochemistry, College of Natural Sciences, South Dakota State University, Brookings, South Dakota, USA
| | - Mater Mahnashi
- Department of Medicinal Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Fathi Halaweish
- Department of Chemistry and Biochemistry, College of Natural Sciences, South Dakota State University, Brookings, South Dakota, USA
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4
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Abou-Salim MA, Shaaban MA, Abd El Hameid MK, Alanazi MM, Halaweish F, Elshaier YAMM. Utilizing Estra-1,3,5,16-Tetraene Scaffold: Design and Synthesis of Nitric Oxide Donors as Chemotherapeutic Resistance Combating Agents in Liver Cancer. Molecules 2023; 28:molecules28062754. [PMID: 36985726 PMCID: PMC10055446 DOI: 10.3390/molecules28062754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/30/2023] Open
Abstract
A new series of nitric oxide-releasing estra-1,3,5,16-tetraene analogs (NO-∆-16-CIEAs) was designed and synthesized as dual inhibitors for EGFR and MRP2 based on our previous findings on estra-1,3,5-triene analog NO-CIEA 17 against both HepG2 and HepG2-R cell lines. Among the target compounds, 14a (R-isomer) and 14b (S-isomer) displayed potent anti-proliferative activity against both HepG2 and HepG2-R cell lines in comparison to the reference drug erlotinib. Remarkably, compound 14a resulted in a prominent reduction in EGFR phosphorylation at a concentration of 1.20 µM with slight activity on the phosphorylation of MEK1/2 and ERK1/2. It also inhibits MRP2 expression in a dose-dependent manner with 24% inhibition and arrested the cells in the S phase of the cell cycle. Interestingly, compound 14a (estratetraene core) exhibited a twofold increase in anti-proliferative activity against both HepG2 and HepG2-R in comparison with the lead estratriene analog, demonstrating the significance of the designed ∆-16 unsaturation. The results shed a light on compound 14a and support further investigations to combat multidrug resistance in chemotherapy of hepatocellular carcinoma patients.
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Affiliation(s)
- Mahrous A Abou-Salim
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Mohamed A Shaaban
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Mohammed K Abd El Hameid
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Mohammed M Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fathi Halaweish
- Department of Chemistry and Biochemistry, South Dakota State University, Box 2202, Brookings, SD 57007, USA
| | - Yaseen A M M Elshaier
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, Menoufia 32958, Egypt
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Computational analysis of natural product B-Raf inhibitors. J Mol Graph Model 2023; 118:108340. [PMID: 36208592 DOI: 10.1016/j.jmgm.2022.108340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 09/21/2022] [Accepted: 09/21/2022] [Indexed: 11/20/2022]
Abstract
B-Raf protein is a serine-threonine kinase and an important signal transduction molecule of the MAPK signaling pathway that mediates signals from RAS to MEK, ultimately promoting various essential cellular functions. The B-Raf kinase domain is divided into two subdomains: a small N-terminal lobe and a large C-terminal lobe, with a deep catalytic cleft between them. The N-terminal lobe contains a phosphate-binding loop (P-loop) and nucleotide-binding pocket, while the C-terminal lobe binds the protein substrates and contains the catalytic loop. The ligand pharmacophore was generated by using 17 different natural products and the receptor pharmacophore was generated by using protein structures. The reported natural product B-Raf inhibitors were analyzed according to the pharmacophore analysis (HipHop fit), virtual screening tools by Lipinski's rule of five. Thirteen out of seventeen molecules share the best ligand based pharmacophoric model (HipHop_5). The best receptor based pharmacophoric model came as AADHR. The compounds were docked against the B-Raf receptors (PDB ID: 3OG7, 4XV2, 5C9C). The compound DHSilB with cDOCKER interaction energy of -62.7 kcal/mol, -83.3 kcal/mol, -73.6 kcal/mol as well as the compound DHSilA with cDOCKER interaction energy of -63.9 kcal/mol, -63.2 kcal/mol, -74.7 kcal/mol showed satisfactory interaction with the respective receptors. Finally, the MD simulation was run for 100 ns for the top docked compounds DHSilA and DHSilB with the B-Raf proteins (PDB ID: 3OG7, 4XV2 and 5C9C). After the MD simulation run for 100 ns, the ligand 2,3-dehydrosilybin A (DHSilA) was found to be more stable in terms of the trajectories of RMSD, RMSF, Rg and H-bonds.
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Aiswarya SUD, Vikas G, Haritha NH, Liju VB, Shabna A, Swetha M, Rayginia TP, Keerthana CK, Nath LR, Reshma MV, Sundaram S, Anto NP, Lankalapalli RS, Anto RJ, Bava SV. Cucurbitacin B, Purified and Characterized From the Rhizome of Corallocarpus epigaeus Exhibits Anti-Melanoma Potential. Front Oncol 2022; 12:903832. [PMID: 35756619 PMCID: PMC9213886 DOI: 10.3389/fonc.2022.903832] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/17/2022] [Indexed: 11/13/2022] Open
Abstract
The ethnomedicinal plant from the Cucurbitaceae family, Corallocarpus epigaeus, or its bioactive derivatives have been widely utilized in traditional medicine owing to their distinct applications against various human ailments and have lured the interest of ethnobotanists and biochemists. Here, we report for the first time, the anti-cancer potential of a bio-active fraction isolated from the dried rhizome of C. epigaeus, and the bioactive principle identified as cucurbitacin B (Cu-B). The purification processes involving the utilization of multiple organic extracts of C. epigaeus rhizome powder, yielded Cu-B from the Ethyl acetate Cytotoxic Fraction (ECF), obtained by the chromatographic separation of the ethyl acetate extract. Amongst the various cancer lines tested, melanoma cells exhibit maximal sensitivity towards the Cu-B-containing ECF fraction. Cu-B induces an apoptotic mode of cell death initiated intrinsically as well as extrinsically in A375 melanoma cells whilst remaining comparatively less toxic to normal skin fibroblasts. In vivo studies involving a NOD-SCID murine model of human melanoma demonstrate the ability of Cu-B to attenuate tumor growth, while being pharmacologically safe in vivo, as assessed in Swiss albino mice. Furthermore, Cu-B inhibits MEK 1/2 as well as the constitutive and EGF-induced ERK 1/2 activation, indicating a definitive involvement of MAPK signal transducers in regulating Cu-B-mediated anti-melanoma activity. Together, our study demonstrates the anti-melanoma potential of C. epigaeus-derived Cu-B, which indicates the Cucurbitaceae succulent as a prospective source for deriving potent and pharmacologically safe anti-cancer compounds.
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Affiliation(s)
- Sreekumar Usha Devi Aiswarya
- Department of Biotechnology, University of Calicut, Malappuram, India.,Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Gowda Vikas
- Chemical Sciences and Technology Division, Council for Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, India
| | - Nair Hariprasad Haritha
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Vijayasteltar Belsamma Liju
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India.,The Shraga Segal Department of Microbiology-Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Anwar Shabna
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Mundanattu Swetha
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | | | | | - Lekshmi Raghu Nath
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India.,Department of Pharmacognosy, Amritha School of Pharmacy, Amritha Vishwa Vidyapeetham, Amrita Institute of Medical Sciences (AIMS) Health Science Campus, Ponekkara P.O, Kochi, India
| | - Mullan Vellandy Reshma
- Agro-Processing and Technology Division, Council for Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sankar Sundaram
- Department of Pathology, Government Medical College, Kottayam, India
| | - Nikhil Ponnoor Anto
- The Shraga Segal Department of Microbiology-Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ravi Shankar Lankalapalli
- Chemical Sciences and Technology Division, Council for Scientific and Industrial Research (CSIR)-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Ruby John Anto
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
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Mahnashi MH, El-Senduny FF, Alshahrani MA, Abou-Salim MA. Design, Synthesis, and Biological Evaluation of a Novel VEGFR-2 Inhibitor Based on a 1,2,5-Oxadiazole-2-Oxide Scaffold with MAPK Signaling Pathway Inhibition. Pharmaceuticals (Basel) 2022; 15:ph15020246. [PMID: 35215358 PMCID: PMC8880564 DOI: 10.3390/ph15020246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 12/04/2022] Open
Abstract
Over the past few decades, the development of broad-spectrum anticancer agents with anti-angiogenic activity has witnessed considerable progress. In this study, a new series of pyrazolo[3,4-d]pyrimidines based on a phenylfuroxan scaffold were designed, synthesized, and evaluated, in terms of their anticancer activities. NCI-60 cell one-dose screening revealed that compounds 12a–c and 14a had the best MGI%, among the tested compounds. The target fluorinated compound 12b, as the most active one, showed better anticancer activity compared to the reference drug sorafenib, with IC50 values of 11.5, 11.6, and 13 µM against the HepG-2, A2780CP, and MDA-MB-231 cell lines, respectively. Furthermore, compound 12b (IC50 = 0.092 µM) had VEGFR-2-inhibitory activity comparable to that of the standard inhibitor sorafenib (IC50 = 0.049 µM). Furthermore, the ability of compound 12b in modulating MAPK signaling pathways was investigated. It was found to decrease the level of total ERK and its phosphorylated form, as well as leading to the down-regulation of metalloproteinase MMP-9 and the over-expression of p21 and p27, thus leading to subG1 cell-cycle arrest and, thus, the induction of apoptosis. Additionally, compound 12b decreased the rate of wound healing in the absence of serum, in comparison to DMSO-treated cells, providing a significant impact on metastasis inhibition. The quantitative RT-PCR results for E-cadherin and N-cadherin showed lower expression of the neuronal N-cadherin and increased expression of epithelial E-cadherin, indicating the ability of 12b to suppress metastasis. Furthermore, 12b-treated HepG2 cells expressed a low level of anti-apoptotic BCL-2 and over-expressed proapoptotic Bax genes, respectively. Using the DAF-FM DA fluorescence probe, compound 12b produced NO intracellularly as efficiently as the reference drug JS-K. In silico molecular docking studies showed a structural similarity through an overlay of 12b with sorafenib. Interestingly, the drug-likeness properties of compound 12b met the expectations of Pfizer’s rule for the design of new drug candidates. Therefore, this study presents a novel anticancer lead compound that is worthy of further investigation and activity improvement.
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Affiliation(s)
- Mater H. Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran 61441, Saudi Arabia;
| | - Fardous F. El-Senduny
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt;
| | - Mohammed Abdulrahman Alshahrani
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, Najran 61441, Saudi Arabia;
| | - Mahrous A. Abou-Salim
- Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
- Correspondence:
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Ostlund T, Alotaibi F, Kyeremateng J, Halaweish H, Kasten A, Iram S, Halaweish F. Triazole-estradiol analogs: A potential cancer therapeutic targeting ovarian and colorectal cancer. Steroids 2022; 177:108950. [PMID: 34933058 DOI: 10.1016/j.steroids.2021.108950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 11/08/2021] [Accepted: 12/13/2021] [Indexed: 02/07/2023]
Abstract
1,2,3-triazoles have continuously shown effectiveness as biologically active systems towards various cancers, and when used in combination with steroid skeletons as a carrier, which can act as a drug delivery system, allows for a creation of a novel set of analogs that may be useful as a pharmacophore leading to a potential treatment option for cancer. A common molecular target for cancer inhibition is that of the Epidermal Growth Factor Receptor/Mitogen Activated Protein Kinase pathways, as inhibition of these proteins is associated with a decrease in cell viability. Estradiol-Triazole analogs were thus designed using a molecular modeling approach. Thirteen of the high scoring analogs were then synthesized and tested in-vitro on an ovarian cancer cell line (A2780) and colorectal cancer cell line (HT-29). The most active compound, Fz25, shows low micromolar activity in both the ovarian (15.29 ± 2.19 µM) and colorectal lines (15.98 ± 0.39 µM). Mechanism of action studies proved that Fz25 moderately arrests cells in the G1 phase of the cell cycle, specifically inhibiting STAT3 in both cell lines. Additionally, Fz57 shows activity in the colorectal line (24.19 ± 1.37 µM). Inhibition studies in both cell lines show inhibition against various proteins in the EGFR pathway, namely EGFR, STAT3, ERK, and mTOR. To further study their effects as therapeutics, Fz25 and Fz57 were studied against drug efflux proteins, which are associated with drug resistance, and were found to inhibit the ABC transporter P-glycoprotein. We can conclude that these estradiol-triazole analogs provide a key for future studies targeting protein inhibition and drug resistance in cancer.
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Affiliation(s)
- Trevor Ostlund
- Department of Chemistry & Biochemistry, South Dakota State University, Brookings, SD 57007, United States
| | - Faez Alotaibi
- Department of Chemistry & Biochemistry, North Dakota State University, Fargo, ND 58105, United States
| | - Jennifer Kyeremateng
- Department of Chemistry & Biochemistry, South Dakota State University, Brookings, SD 57007, United States
| | - Hossam Halaweish
- Division of Basic & Translational Research, Department of Surgery, University of Minnesota, 420 Delaware St SE. MMC 195, Minneapolis, MN 55455, United States
| | - Abigail Kasten
- Department of Chemistry & Biochemistry, South Dakota State University, Brookings, SD 57007, United States
| | - Surtaj Iram
- Department of Chemistry & Biochemistry, South Dakota State University, Brookings, SD 57007, United States
| | - Fathi Halaweish
- Department of Chemistry & Biochemistry, South Dakota State University, Brookings, SD 57007, United States.
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Ewida MA, Ewida HA, Ahmed MS, Allam HA, ElBagary RI, George RF, Georgey HH, El-Subbagh HI. Nanomolar potency of imidazo[2,1-b]thiazole analogs as indoleamine 2,3-dioxygenase inhibitors. Arch Pharm (Weinheim) 2021; 354:e2100202. [PMID: 34313342 DOI: 10.1002/ardp.202100202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/25/2021] [Accepted: 07/01/2021] [Indexed: 12/21/2022]
Abstract
Novel series of imidazo[2,1-b]thiazole analogs were designed, synthesized, and biologically evaluated as indoleamine 2,3-dioxygenase (IDO1) inhibitors. Imidazo[2,1-b]thiazoles 6, 7, and 8 showed inhibitory profiles against IDO1 at IC50 values of 68.48, 82.39, and 48.48 nM, respectively, compared with IDO5L at IC50 67.40 nM. Benzo[d]imidazo[2,1-b]thiazoles 17, 20, and 22 showed promising IDO1 inhibition at IC50 values of 53.58, 53.16, and 57.95 nM, respectively. Compound 7 showed a growth-inhibitory profile at GI of 39.33% against the MCF7 breast cancer cell line, while 8 proved lethal to ACHN renal cancer cells. Cells treated with compounds 17 and 22 showed a typical apoptosis pattern of DNA fragments that reflected the G0/G1, S, and G2/M phases of the cell cycle, together with a pre-G1 phase corresponding to apoptotic cells, which indicates that cell growth arrest occurred at the S phase. Molecular modeling simulations validated the potential of benzo[d]imidazo[2,1-b]thiazole analogs to chelate iron(III) within the IDO1 binding pocket and, hence, to have a better binding affinity via hydrophobic-hydrophobic interactions.
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Affiliation(s)
- Menna A Ewida
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences & Pharmaceutical Industries, Future University in Egypt, Cairo, Egypt
| | - Heba A Ewida
- Department of Pharmacology and Biochemistry, Faculty of Pharmaceutical Sciences & Pharmaceutical Industries, Future University in Egypt, Cairo, Egypt
| | - Mahmoud S Ahmed
- Department of Internal Medicine, Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - Ramzia I ElBagary
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences & Pharmaceutical Industries, Future University in Egypt, Cairo, Egypt
| | - Riham F George
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Hanan H Georgey
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Heliopolis University for Sustainable Development, Cairo, Egypt
| | - Hussein I El-Subbagh
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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10
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Anti-estrogenic and anti-aromatase activities of citrus peels major compounds in breast cancer. Sci Rep 2021; 11:7121. [PMID: 33782546 PMCID: PMC8007834 DOI: 10.1038/s41598-021-86599-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/10/2021] [Indexed: 02/01/2023] Open
Abstract
Estrogen signaling is crucial for breast cancer initiation and progression. Endocrine-based therapies comprising estrogen receptor (ER) modulators and aromatase inhibitors remain the mainstay of treatment. This study aimed at investigating the antitumor potential of the most potent compounds in citrus peels on breast cancer by exploring their anti-estrogenic and anti-aromatase activities. The ethanolic extract of different varieties of citrus peels along with eight isolated flavonoids were screened against estrogen-dependent breast cancer cell lines besides normal cells for evaluating their safety profile. Naringenin, naringin and quercetin demonstrated the lowest IC50s and were therefore selected for further assays. In silico molecular modeling against ER and aromatase was performed for the three compounds. In vivo estrogenic and anti-estrogenic assays confirmed an anti-estrogenic activity for the isolates. Moreover, naringenin, naringin and quercetin demonstrated in vitro inhibitory potential against aromatase enzyme along with anticancer potential in vivo, as evidenced by decreased tumor volumes. Reduction in aromatase levels in solid tumors was also observed in treated groups. Overall, this study suggests an antitumor potential for naringenin, naringin and quercetin isolated from citrus peels in breast cancer via possible modulation of estrogen signaling and aromatase inhibition suggesting their use in pre- and post-menopausal breast cancer patients, respectively.
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Hussein AHM, Khames AA, El-Adasy ABA, Atalla AA, Abdel-Rady M, Hassan MIA, Abou-Salim MA, Elshaier YAMM, Barakat A. Multifunctional Isosteric Pyridine Analogs-Based 2-Aminothiazole: Design, Synthesis, and Potential Phosphodiesterase-5 Inhibitory Activity. Molecules 2021; 26:902. [PMID: 33572094 PMCID: PMC7915674 DOI: 10.3390/molecules26040902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 11/23/2022] Open
Abstract
The elaboration of new small molecules that target phosphodiesterase enzymes (PDEs), especially those of type 5 (PDE5), is an interesting and emerging topic nowadays. A new series of heterocycle-based aminothiazoles were designed and synthesized from the key intermediate, 3-oxo-N-(thiazol-2-yl)butanamide (a PDE5 inhibitor that retains its amidic function), as an essential pharmacophoric moiety. The PDE5 inhibitors prevent the degradation of cyclic guanosine monophosphate, thereby causing severe hypotension as a marked side effect. Hence, an in vivo testing of the target compounds was conducted to verify its relation with arterial blood pressure. Utilizing sildenafil as the reference drug, Compounds 5, 10a, and 11b achieved 100% inhibitions of PDE5 without significantly lowering the mean arterial blood pressures (115.95 ± 2.91, 110.3 ± 2.84, and 78.3 ± 2.57, respectively). The molecular docking study revealed that the tested compounds exhibited docking poses that were similar to that of sildenafil (exploiting the amide functionality that interacted with GLN:817:A). The molecular shape and electrostatic similarity revealed a comparable physically achievable electrostatic potential with the reference drug, sildenafil. Therefore, these concomitant results revealed that the tested compounds exerted sildenafil-like inhibitory effects (although without its known drawbacks) on blood circulation, thus suggesting that the tested compounds might represent a cornerstone of beneficial drug candidates for the safe treatment for erectile dysfunction.
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Affiliation(s)
| | - Ahmed A Khames
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Abu-Bakr A El-Adasy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Ahmed A Atalla
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Mohamed Abdel-Rady
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Mohamed I A Hassan
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Mahrous A Abou-Salim
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Yaseen A M M Elshaier
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, Menoufiya 32958, Egypt
| | - Assem Barakat
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt
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12
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Cucurbitacins inspired organic synthesis: Potential dual inhibitors targeting EGFR – MAPK pathway. Eur J Med Chem 2019; 173:294-304. [DOI: 10.1016/j.ejmech.2019.04.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/19/2019] [Accepted: 04/09/2019] [Indexed: 11/20/2022]
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13
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Structure-based drug design, synthesis, In vitro, and In vivo biological evaluation of indole-based biomimetic analogs targeting estrogen receptor-α inhibition. Eur J Med Chem 2019; 166:281-290. [DOI: 10.1016/j.ejmech.2019.01.068] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/14/2019] [Accepted: 01/28/2019] [Indexed: 01/27/2023]
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14
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Abou-Salim MA, Shaaban MA, Abd El Hameid MK, Elshaier YAMM, Halaweish F. Design, synthesis and biological study of hybrid drug candidates of nitric oxide releasing cucurbitacin-inspired estrone analogs for treatment of hepatocellular carcinoma. Bioorg Chem 2019; 85:515-533. [PMID: 30807895 DOI: 10.1016/j.bioorg.2019.01.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/27/2019] [Accepted: 01/30/2019] [Indexed: 01/08/2023]
Abstract
Development of hybrid drug candidates is well known strategy for designing antitumor agents. Herein, a novel class of nitric oxide donating cucurbitacin inspired estrone analogs (NO-CIEAs) were designed and synthesized as multitarget agents. Synthesized analogs were initially evaluated for their anti-hepatocellular carcinoma activities. Among the tested analogs, NO-CIEAs 17 and 20a exhibited more potent activity against HepG2 cells (IC50 = 4.69 and 12.5 µM, respectively) than the reference drug Erlotinib (IC50 = 25 µM). Interestingly, NO-CIEA 17 exerted also a high potent activity against Erlotinib-resistant HepG2 cell line (HepG2-R) (IC50 = 8.21 µM) giving insight about its importance in drug resistance therapy. Intracellular measurements of NO revealed that NO-CIEAs 17 and 20a showed a significant increase in NO production in tumor cells after 1 h of incubation comparable to the reference prodrug JS-K. Flow cytometric analysis showed that both NO-CIEAs 17 and 20a mainly arrested the HepG2 cells in the G0/G1 phase. Also, In-Cell Based ELISA screening showed that NO-CIEA 17 resulted in a potential inhibitory activity towards the EGFR and MAPK (25% and 29% inhibition compared to untreated control cells, respectively). This data suggests the binding ability of NO-CIEA 17 to the EGFR and ERK to be well correlated along with the docking and cellular studies. Also, treatment of HepG2-R cells with NO-CIEA 17 showed a potential reduction of MRP2 expression in a dose dependent manner providing a significant impact on the chemotherapeutic resistance. Overall, the current study provides a potential new approach for the discovery of a novel antitumor agent against HCC.
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Affiliation(s)
- Mahrous A Abou-Salim
- Al-Azhar University, Faculty of Pharmacy, Pharmaceutical Organic Chemistry, Assiut 71524, Egypt; South Dakota State University, Chemistry & Biochemistry, Box 2202, Brookings, SD 57007, USA
| | - Mohamed A Shaaban
- Cairo University, Faculty of Pharmacy, Pharmaceutical Organic Chemistry, Cairo 11562, Egypt
| | | | - Yaseen A M M Elshaier
- University of Sadat City, Faculty of Pharmacy, Organic and Medicinal Chemistry, Menoufia 32958, Egypt
| | - Fathi Halaweish
- South Dakota State University, Chemistry & Biochemistry, Box 2202, Brookings, SD 57007, USA
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15
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Ayoub BM, Attia YM, Ahmed MS. Structural re-positioning, in silico molecular modelling, oxidative degradation, and biological screening of linagliptin as adenosine 3 receptor (ADORA3) modulators targeting hepatocellular carcinoma. J Enzyme Inhib Med Chem 2018; 33:858-866. [PMID: 29768061 PMCID: PMC6010121 DOI: 10.1080/14756366.2018.1462801] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 04/03/2018] [Accepted: 04/04/2018] [Indexed: 12/24/2022] Open
Abstract
Chemical entities with structural diversity were introduced as candidates targeting adenosine receptor with different clinical activities, containing 3,7-dihydro-1H-purine-2,6-dione, especially adenosine 3 receptors (ADORA3). Our initial approach started with pharmacophore screening of ADORA3 modulators; to choose linagliptin (LIN), approved anti-diabetic drug as Dipeptidyl peptidase-4 inhibitors, to be studied for its modulating effect towards ADORA3. This was followed by generation, purification, analytical method development, and structural elucidation of oxidative degraded product (DEG). Both of LIN and DEG showed inhibitory profile against hepatocellular carcinoma cell lines with induction of apoptosis at G2/M phase with increase in caspase-3 levels, accompanied by a downregulation in gene and protein expression levels of ADORA3 with a subsequent increase in cAMP. Quantitative in vitro assessment of LIN binding affinity against ADORA3 was also performed to exhibit inhibitory profile at Ki of 37.7 nM. In silico molecular modelling showing binding affinity of LIN and DEG towards ADORA3 was conducted.
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Affiliation(s)
- Bassam M. Ayoub
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Egypt
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Egypt
| | - Yasmeen M. Attia
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Egypt
- Pharmacology Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Egypt
| | - Mahmoud S. Ahmed
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Egypt
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Egypt
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16
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Ismail RSM, Abou-Seri SM, Eldehna WM, Ismail NSM, Elgazwi SM, Ghabbour HA, Ahmed MS, Halaweish FT, Abou El Ella DA. Novel series of 6-(2-substitutedacetamido)-4-anilinoquinazolines as EGFR-ERK signal transduction inhibitors in MCF-7 breast cancer cells. Eur J Med Chem 2018; 155:782-796. [PMID: 30047410 DOI: 10.1016/j.ejmech.2018.06.024] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 06/06/2018] [Accepted: 06/08/2018] [Indexed: 12/21/2022]
Abstract
Epidermal growth factor receptor (EGFR) signaling pathway has been previously investigated for its significant role in the progression of different types of malignant tumors, where development of small molecules targeting EGFR is well known strategy for design of antitumor agents. Herein, we report the design and synthesis of two series of 6-(2-substitutedacetamido)-4-anilinoquinazolines (6a-x and 13a-d) as EGFR inhibitors. All the newly synthesized quinazoline derivatives were in vitro evaluated for their anti-proliferative activity towards MCF-7 (Breast Cancer) and HepG2 (Hepatocellular carcinoma) cell lines. In particular, compound 6n showed significant inhibitory activity against MCF-7 and HepG2 cell lines (IC50 = 3 and 16 μM, respectively), compared to that of Erlotinib (IC50 = 20 and 25 μM, respectively). Western blotting of 6n at MCF-7 cell line revealed the dual inhibitory activity of 6n towards diminishing the phosphorylated levels for EGFR and ERK. Also, ELISA assay confirmed the anti-EGFR activity of compound 6n (IC50 = 0.037 μM). Finally, a molecular docking study showed the potential binding mode of 6n within the ATP catalytic binding site of EGFR, exhibiting similar binding mode to EGFR inhibitor Erlotinib.
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Affiliation(s)
- Rania S M Ismail
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City, P.O. Box 11829, Cairo, Egypt
| | - Sahar M Abou-Seri
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, P.O. Box 11562, Cairo, Egypt.
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
| | - Nasser S M Ismail
- Pharmaceutical Chemistry Department, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt, Cairo, Egypt
| | - Sara M Elgazwi
- Department of Chemistry and Biochemisty, South Dakota State University, Brookings, SD, 57007, USA
| | - Hazem A Ghabbour
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Saudi Arabia; Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Mahmoud Salama Ahmed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The British University in Egypt, Al-Sherouk City, Cairo, Egypt
| | - Fathi T Halaweish
- Department of Chemistry and Biochemisty, South Dakota State University, Brookings, SD, 57007, USA
| | - Dalal A Abou El Ella
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Abbassia, P.O. Box 11566, Egypt; Faculty of Pharmacy, Nahda University, New Beni Suef (NUB), 62511, Egypt
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17
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Farag AB, Ewida HA, Ahmed MS. Design, synthesis, and biological evaluation of novel amide and hydrazide based thioether analogs targeting Histone deacteylase (HDAC) enzymes. Eur J Med Chem 2018; 148:73-85. [DOI: 10.1016/j.ejmech.2018.02.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/09/2018] [Accepted: 02/05/2018] [Indexed: 12/20/2022]
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18
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Ahmed MS, El-Senduny F, Taylor J, Halaweish FT. Biological screening of cucurbitacin inspired estrone analogs targeting mitogen-activated protein kinase (MAPK) pathway. Chem Biol Drug Des 2017; 90:478-484. [PMID: 28171685 DOI: 10.1111/cbdd.12963] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 01/23/2017] [Accepted: 01/28/2017] [Indexed: 02/02/2023]
Affiliation(s)
- Mahmoud S. Ahmed
- Department of Pharmaceutical Chemistry; Faculty of Pharmacy; The British University in Egypt; El-Sherouk Cairo Egypt
| | - Fardous El-Senduny
- Department of Chemistry; Faculty of Science; Mansoura University; Mansoura Egypt
| | - Jessica Taylor
- Department of Chemistry and Biochemistry; South Dakota State University; Brookings SD USA
| | - Fathi T. Halaweish
- Department of Chemistry and Biochemistry; South Dakota State University; Brookings SD USA
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20
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Elshaier YAMM, Shaaban MA, Abd El Hamid MK, Abdelrahman MH, Abou-Salim MA, Elgazwi SM, Halaweish F. Design and synthesis of pyrazolo[3,4-d]pyrimidines: Nitric oxide releasing compounds targeting hepatocellular carcinoma. Bioorg Med Chem 2017; 25:2956-2970. [PMID: 28487127 DOI: 10.1016/j.bmc.2017.03.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/26/2017] [Accepted: 03/03/2017] [Indexed: 02/07/2023]
Abstract
A new series of pyrazolo[3,4-d]pyrimidines tethered with nitric oxide (NO) producing functionality was designed and synthesized. Sulforhodamine B (SRB) protein assay revealed that NO releasing moiety in the synthesized compounds significantly decreased the cell growth more than the des-NO analogues. Compounds 7C and 7G possessing N-para-substituted phenyl group, released the highest NO concentration of 4.6% and 4.7% respectively. Anti-proliferative activity of synthesized compounds on HepG2 cell line identified compounds 7h, 7p, 14a and 14b as the most cytotoxic compounds in the series of IC50=3, 5, 3 and 5μM, respectively, compared to erlotinib as a reference drug (IC50=25μM). Flow cytometry studies revealed that 7h arrested the cells in G0/G1 phase of cell cycle while 7p arrested the cells in S phase. Moreover, docking study of the synthesized compounds on EGFR (PDB code: 1M17) and cytotoxicity study indicated that N-1 phenyl para substitution, pyrazole C-3 alkyl substitution and tethering the nitrate moiety through butyl group had a significant impact on the activity.
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Affiliation(s)
- Yaseen A M M Elshaier
- Al-Azhar University, Faculty of Pharmacy, Pharmaceutical Organic Chemistry Department, Assiut 71524, Egypt
| | - Mohamed A Shaaban
- Cairo University, Faculty of Pharmacy, Pharmaceutical Organic Chemistry Department, Cairo 11562, Egypt
| | - Mohammed K Abd El Hamid
- Cairo University, Faculty of Pharmacy, Pharmaceutical Organic Chemistry Department, Cairo 11562, Egypt
| | - Mostafa H Abdelrahman
- Al-Azhar University, Faculty of Pharmacy, Pharmaceutical Organic Chemistry Department, Assiut 71524, Egypt
| | - Mahrous A Abou-Salim
- Al-Azhar University, Faculty of Pharmacy, Pharmaceutical Organic Chemistry Department, Assiut 71524, Egypt; South Dakota State University, Faculty of Science, Chemistry Department, Brookings, SD 57007, USA
| | - Sara M Elgazwi
- South Dakota State University, Faculty of Science, Chemistry Department, Brookings, SD 57007, USA
| | - Fathi Halaweish
- South Dakota State University, Faculty of Science, Chemistry Department, Brookings, SD 57007, USA.
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Alsayari A, Kopel L, Ahmed MS, Pay A, Carlson T, Halaweish FT. Design, synthesis, and biological evaluation of steroidal analogs as estrogenic/anti-estrogenic agents. Steroids 2017; 118:32-40. [PMID: 27876568 DOI: 10.1016/j.steroids.2016.11.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/13/2016] [Accepted: 11/17/2016] [Indexed: 02/01/2023]
Abstract
Series of estrone based analogs were synthetically investigated at positions C-9, C-11, C-16, and C-17 positions, to be biologically evaluated via assessment of cell proliferation, cytotoxicity, and estrogenic/anti-estrogenic activity. LA-7 and LA-10 revealed their potential to exhibit inhibitory estrogenic profile. This was further validated by Estrogen Receptor-α (ER-α) and Estrogen Receptor-β (ER-β) competitive binding assays to reveal the high selective affinity of LA-7 towards ER-α at 5.49μM, while LA-10 did not show any binding affinity towards neither ER-α nor ER-β; suggesting another mechanism for inhibition. This was validated by in silico molecular docking simulations of LA-7 to reveal the optimum binding affinity of LA-7 towards ER-α.
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Affiliation(s)
- Abdulrhman Alsayari
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Lucas Kopel
- Department of Chemistry and Biochemistry, South Dakota State University, Box 2202, Brookings, SD 57007, USA
| | - Mahmoud Salama Ahmed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The British University in Egypt, Al-Sherouk City, Cairo, Egypt
| | - Adam Pay
- Department of Chemistry and Biochemistry, South Dakota State University, Box 2202, Brookings, SD 57007, USA
| | - Taylor Carlson
- Department of Chemistry and Biochemistry, South Dakota State University, Box 2202, Brookings, SD 57007, USA
| | - Fathi T Halaweish
- Department of Chemistry and Biochemistry, South Dakota State University, Box 2202, Brookings, SD 57007, USA.
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